RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
The used-market median for a Proceed AMP 3 is US$848, with the lower quartile at US$724 and the upper quartile at US$971. At US$600, this is clearly below the typical range—a strong deal, assuming it is genuinely working and complete.
The AMP 3 remains a serious three-channel power amplifier: 150 watts per channel into 8 ohms, with a true multiple-mono layout, separate transformers, and both balanced and single-ended inputs. It is known for clean, detailed, controlled sound and can drive demanding speakers confidently. The only sensible check is age-related condition: confirm all three channels operate quietly, inspect the inputs and speaker terminals, and verify the correct mains voltage. At this price, a tested example is an excellent buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
# Proceed
Proceed was established in 1989 by Madrigal Audio Laboratories as a companion brand to the prestigious Mark Levinson line. Founded by Sanford Berlin, who acquired Mark Levinson in 1984, Madrigal created Proceed as a vehicle for introducing cutting-edge high-end audio technologies at a relatively more accessible price point. The brand operated under the Harman International umbrella and was headquartered in Middletown, Connecticut, drawing on decades of expertise in esoteric audio design and engineering.
Proceed built its reputation across multiple product categories, including CD players, digital transports, DACs, surround-sound processors, and power amplifiers. Early Proceed products—such as the PCD CD player, PDT transport, and PDP DAC—featured distinctive upright industrial design and high-quality component selection. The brand later expanded into multichannel amplification and AV processors, including the acclaimed AVP2+6, CVP2, HPA2, and HPA3 models, which became some of the company's most successful offerings.
Positioned firmly in the high-end audio market, Proceed earned respect among serious audiophiles for build quality, sonic performance, and innovative circuit design. The brand was discontinued in 2003, with its best-performing products subsequently rebranded under the Mark Levinson name. Today, Proceed equipment remains sought after in the vintage and used high-end market, valued for its natural, non-fatiguing sound character and robust engineering that has proven durable across decades.
See all Proceed listings on RADAR.
